Categories help sort and organise time entries. Each category can have its own rates and can be individually applied to profiles for granular control.
For example; you could create a category for research, client meetings, and design, giving you a better idea of where you and your team are spending time.
To create and manage timesheet categories:
Navigate to Settings and open Time Tracking.
Under Timesheet categories click on Add another to create a category:
Each category consists of a name, billing rate and a cost rate: